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<div class="title">ChessTypes.h</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">    Copyright (c) 2013-2014, Max Stark &lt;max.stark88@googlemail.com&gt;</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">    All rights reserved.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">    Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">    modification, are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">    1. Redistributions of source code must retain the above copyright notice,</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">    this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">    2. Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">    notice, this list of conditions and the following disclaimer in the</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">    documentation and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">    3. Neither the name of the copyright holder nor the names of its</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">    contributors may be used to endorse or promote products derived from</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment">    this software without specific prior written permission.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment">    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment">    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment">    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment">    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment">    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment">    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment">    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment">    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment">    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment">    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment">    POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#ifndef CHESSTYPES_H</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define CHESSTYPES_H</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor">#include &lt;stdint.h&gt;</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#include &lt;limits.h&gt;</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#include &lt;sstream&gt;</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="preprocessor">#include &lt;cassert&gt;</span></div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="preprocessor">#include &quot;misc/helper.h&quot;</span></div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="comment">/* Collection of some useful definitions and chess-types */</span></div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> NUM_FIELDS = 64;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> NUM_FILES = 8;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> NUM_RANKS = 8;</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> NUM_PLAYERS = 2;</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> NUM_PIECETYPES = 6;</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="keyword">enum</span> Field {</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    A1, B1, C1, D1, E1, F1, G1, H1,</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    A2, B2, C2, D2, E2, F2, G2, H2,</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    A3, B3, C3, D3, E3, F3, G3, H3,</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    A4, B4, C4, D4, E4, F4, G4, H4,</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    A5, B5, C5, D5, E5, F5, G5, H5,</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    A6, B6, C6, D6, E6, F6, G6, H6,</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    A7, B7, C7, D7, E7, F7, G7, H7,</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    A8, B8, C8, D8, E8, F8, G8, H8,</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    ERR</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;};</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="keyword">enum</span> File {</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    A = 0, B, C, D, E, F, G, H, NoFile</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;};</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="keyword">enum</span> Rank {</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    One = 0, Two, Three, Four, Five, Six, Seven, Eight, NoRank</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;};</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="keyword">enum</span> PieceType {</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    King, Queen, Bishop, Knight, Rook, Pawn, AllPieces, NoType</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;};</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="keyword">enum</span> PlayerColor {</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    White, Black, NoPlayer</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;};</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="keyword">using</span> Score = int;</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="comment">// Provide MAX_SCORE/MIN_SCORE to ensure that both are negatable to reach each other</span></div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="keyword">const</span> Score MAX_SCORE = std::numeric_limits&lt;Score&gt;::max();</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="keyword">const</span> Score MIN_SCORE = -std::numeric_limits&lt;Score&gt;::max();</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="comment">// Provide a WIN_SCORE/LOOSE_SCORE to ensure that results with it are preferred to MAX_SCORE/MIN_SCORE</span></div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="keyword">const</span> Score WIN_SCORE = std::numeric_limits&lt;Score&gt;::max() - 1;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="keyword">const</span> Score LOOSE_SCORE = -std::numeric_limits&lt;Score&gt;::max() + 1;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="keyword">const</span> Score WIN_SCORE_THRESHOLD = WIN_SCORE - 100000; </div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;<span class="keyword">inline</span> PlayerColor togglePlayerColor(PlayerColor color) {</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    assert(White == 0 &amp;&amp; Black == 1);</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>PlayerColor<span class="keyword">&gt;</span>(<span class="keyword">static_cast&lt;</span><span class="keywordtype">int</span><span class="keyword">&gt;</span>(color) ^ 0x1);</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;}</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="keyword">inline</span> Rank rankFor(Field field) {</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>Rank<span class="keyword">&gt;</span>(<span class="keyword">static_cast&lt;</span><span class="keywordtype">int</span><span class="keyword">&gt;</span>(field) / 8);</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;}</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="keyword">inline</span> File fileFor(Field field) {</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>File<span class="keyword">&gt;</span>(<span class="keyword">static_cast&lt;</span><span class="keywordtype">int</span><span class="keyword">&gt;</span>(field) % 8);</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;}</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="keyword">inline</span> Field fieldFor(File file, Rank rank) {</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span> Field<span class="keyword">&gt;</span>(file + rank * 8);</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;}</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="keyword">inline</span> Field flipHorizontal(Field field) {</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    <span class="keywordflow">return</span> fieldFor(fileFor(field), static_cast&lt;Rank&gt;(Eight - rankFor(field)));</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;}</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<span class="keyword">inline</span> Rank nextRank(Rank rank) {</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>Rank<span class="keyword">&gt;</span>(rank + 1);</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;}</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;<span class="keyword">inline</span> Rank prevRank(Rank rank) {</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>Rank<span class="keyword">&gt;</span>(rank - 1);</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;}</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;<span class="keyword">inline</span> File nextFile(File file) {</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>File<span class="keyword">&gt;</span>(file + 1);</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;}</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;<span class="keyword">inline</span> File prevFile(File file) {</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>File<span class="keyword">&gt;</span>(file - 1);</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;}</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="keyword">inline</span> Field nextField(Field field) {</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>Field<span class="keyword">&gt;</span>(field + 1);</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;}</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;<span class="keyword">inline</span> Field prevField(Field field) {</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>Field<span class="keyword">&gt;</span>(field - 1);</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;}</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;<span class="keyword">using</span> BitBoard = uint64_t;</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;<span class="keyword">using</span> Hash = uint64_t;</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;</div>
<div class="line"><a name="l00141"></a><span class="lineno"><a class="line" href="struct_piece.html">  141</a></span>&#160;<span class="keyword">struct </span><a class="code" href="struct_piece.html">Piece</a> {</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    PlayerColor player;</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    PieceType   type;</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <a class="code" href="struct_piece.html">Piece</a>()</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;        : player(NoPlayer), type(NoType) {}</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <a class="code" href="struct_piece.html">Piece</a>(PlayerColor player, PieceType pieceType)</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        : player(player), type(pieceType) {}</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code" href="struct_piece.html">Piece</a>&amp; other) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;};</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;<span class="keyword">namespace </span>std {</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;    std::ostream&amp; operator &lt;&lt;(std::ostream&amp; stream, <span class="keyword">const</span> PlayerColor c);</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    std::ostream&amp; operator &lt;&lt;(std::ostream&amp; stream, <span class="keyword">const</span> <a class="code" href="struct_piece.html">Piece</a> p);</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    std::ostream&amp; operator &lt;&lt;(std::ostream&amp; stream, <span class="keyword">const</span> Field f);</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    std::ostream&amp; operator &lt;&lt;(std::ostream&amp; stream, <span class="keyword">const</span> Rank r);</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    std::ostream&amp; operator &lt;&lt;(std::ostream&amp; stream, <span class="keyword">const</span> File f);</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;}</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;<span class="preprocessor">#endif // CHESSTYPES_H</span></div>
<div class="ttc" id="struct_piece_html"><div class="ttname"><a href="struct_piece.html">Piece</a></div><div class="ttdef"><b>Definition:</b> ChessTypes.h:141</div></div>
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